Antifriction bearing



kMay 29, 1923.

, 1,456,996 J. F. ocoNNoR IIIIIIIIIIIIIIIII NG M M' .l

mUuml' ,y

M" .I Il

J- figg /l Patented May 29, 19.23..

vU-Nrreo s,rares Lease@ PATENT oFFHCE-,y

JOHN F. ocoNNoa, 0F cnicas-o, ILLINOIS, AssIeNoR 'rov WILLIAM n. mman,or

y v orinar, NEW YORK.. x

Y ANmIraioTioN BEARING.

Application led March 10, 1921.l Seria1-o. 451,237.

Toiall' whom #may concern Be' itV known that I, JOHN F.V OCoNNon, aycitizen of the United States, residing at Chicago, in the county of CookandfState oflllinois, have invented a certain new and useful Improvementin Antifriction Bearings,of whichthe following. is aiull, clear,concise, and exact description, reference being had totheaccompanyingdrawings, forming a part of this specification.`

'This invention relates to improvements in anti-frictionbearings..

One ob'ect offthe invention is to provide an antifriction bearingespecially adaptedforuse asa Vside bearing on railway cars andwhereinthe same may be attached to the body bolster of the car Vand theanti-friction element'proper made self-eentering under the action ofgravity.

More specifically, the object of t-he invention is toA provide a sidebearing of the rolling-rocker type wherein the frietionele inentisreturned under the influence of gravity after removal of the load and inwhich also. are combined means for positively maintaining a definiterelation'l between the anti-friction element and its associated parts.`f

- In thedrawingformin'g a part o'fthis specificaticm',.'Figurell isavertical, sec.

tional view taken thijoughthe ends of a 'body and truckbolster of`af`railway car, showing Inyimprovements incorinection therewith. AndfFigure2 isla vertical, sectional view corresponding substantially to theline/2 2 of Figurel 1.- y v In said drawing, v'10 denotes the upperportion ofa-t-ruclfbolster ofa railway'car and 11 the opposed lowerpartor section oa body bolster. v My improved bearing is Vshown attachedtothe bodybolster. The improved bearing comprises, broadly, a retainingmemberor housing or casing A; an anti-friction element proper vB; `aseparate wear or bearing plate'C; and supporting pins .1D-QD: i

The retain'ing',.member!A', as shown, has an upper flat wall 12adaptedto lie against the under face ofthe body bolster, said wallhaving extensions 12ij-12a suitably perforated to accommodate rivets orother .fastening devices ffor'holding the retaining mem.- berrigidlyinyposition. rI he retaining mem,- bcr` A also Ahas dependent'vertical side walls 13,-13; downwardly; sloping end vwalls plate C.

llimited amount of vertical movement as best .lll-14; verticallyextending side recesses 16h16 on the interiorwithin which Vareaccommodated vthe ends The anti-friction element B"v is vof the rollingrocker type and has ay lower curved bearing surface 17 adapted toengagev the opposed truck vbolster' 10. At the top, the element Bisprovided with another curved bearing surface 18 concentric with.l thesurof the bearing f face 17 but struck ony a shorter radius, the

two'A surfaces 17 and i 18 lbeing merged with iiat surfaces 19.-19'arranged preferably tangential to the surface 18.`Thel'latsii-rffaces-19, as best shownA by the dotted posi`- tion of theelement B lin Figurel, are adapteditov engage with the innerfaces`14"-14a of the end walls of the retainingv member to limitthe'movements of theelementB.

Said bearing surface 18 engages theunder lacev ofy th'einsert,preferably steel tempered, bearing vplate C vwhich isr mounted withinthe recesses 16,- hereinbefore f described. Preferably the" plate" Cwill be' allowed indicated in 'Figure 1.v Said plate G isheld 1noperative positionv Partly by the element B, which is supported ashereinafter described, and alsopreferably by smalll knobs 20-20 on theretaining member Awhicli are bent overt o extend underneaththe'plate'C'after the latter has been'properly inserted. i

Owing to thefact that thereisno vbat'zling The contourof, the side faces423 ismade -such that the dimension thereacross` in l ahorizontaldirection, in` any position offthe l element B and at the:points of contact'of the guide lugs witlrthe' sides :of the rre'-cesses' 15 will always substantially" corre? spond tor the horizontaldistance between said side walls of therecess'es" 15. In thisconnection, it is'to be understood'y thatftlie lugs 21l are oscillatableWithin the'fvertical recesses '15 and, on" jacc'ount'of the contourabove described, .will z ilwa'ysv serve to maintain a predetermined.relation between the anti-friction element B and the retaining member Aand prevent any bodily shifting of the element B with respect to themember A while at the same time permitting free oscillating or rollingmovements of the element B. I

On the outer side of each guide lug 21 there is formed a preferablyintegral fulcrum or pivotal supporting lug 25 of generally triangularform as best shown in Figure l, with the lower end thereof rounded asindicated at 25a. Said supporting lugs 25 are normally supported byhorizontally extending heavy rivets or pins 26 which are extendedthrough suitable alined perfor-ations in the walls of the retainingmember A, said pins being held in place by cotters 27 or other suitableequivalent means.

In operation, as 4the two holsters 10 and ll approach each other andshift radially, the element B will be elevated until the plate C engagesagainst the bottoms of the recesses 16. As the relative radial movementof the bolsters continues, the element B will be rolled` as for instanceto the dotted line position shown in Figure l. Upon separation of theholsters or lremoval of the pressure upon the anti-friction element` B,the latter will drop downwardly until the supporting lugs 25 bear uponthe heavy pins 26 whereupon the weight of the anti-friction element B issustained by said pins and the antifriction element is adapted to swingunder the influence of gravity back to its normal central position,fulcru'ming about the rounded edges 25a of the lugs 25. The employmentof the guide lugs 2l insures proper centering of the element B when inits free or normal condition.

I have herein shown and described what I now consider the preferredmanner of carrying out the invention, but the same is merelyillustrative and I contemplate all changes and modifications that comewithin the scope of the claims appended hereto.

I claim:

l. In an anti-friction bearing of the character described, adapted to besecured in a depending position on the under side of a bolster or thelike` the combination with a retaining member having an upper bearingsurface and a fixed supporting means; of an anti-friction rollingelement having upper and lower concentric bearingy surfaces, the upperbearing surface being arranged to roll upon said bearing surface of theretaining member; co-operating means comprising laterally extendingguide lugs on said element and co-acting guide ways in saidretainingmember, said means being operative in all positions of said element tomaintain a predetermined relation therebetween and preventl bodilyshifting of the element with respect to the retaining member; and

means on said element, distinct from said first named means, fulcrumedon said fixed supporting means on said retaining member above the centerof mass of said element, whereby the latter is adapted to return to itsnormal position, under the infiuence of gravity, after the removal ofthe actuating pressure.

2. In an anti-friction bearing of the character described, adapted to besecured in a depending position on the under side of a bolster or thelike, thecombination with a retaining member, having a fixed supportingmeans thereon; of an anti-friction roll-- ing element having upper andlower concentric surfaces; a bearing plate mounted within said retainingmember and on which said upper bearing surface of said element: isadapted to roll; co-operating means comprising laterally extending guidelugs on said element and co-acting guide ways said retaining member,said means beingoperative in all positions of said element to] maintaina predetermined relation therebetween `and prevent bodily shifting ofthe rolling element with respect to the retaining member and means vonsaid element distinct from said first named means, fulcrumed on saidfixed supporting means on said retaining member above the center of massof said element, whereby the latter is adapted to return to its normalposition, under the influence of gravity, after the removal of theactuating pressure.

3. In an anti-friction bearing of the character described adapted to besecured in a depending position on the under side of a bolster or thelike, the combination with a retaining member having an upper bearingsurface; of an anti-friction rollingvelement having upper and lowerconcentric bearing surfaces, the upper bearingl surface being arrangedto roll upon said bearing surface of the retaining member; cooperatingmeans on said element and retaining member, operative in all positionsof said element, to maintain a predetermined relation therebetween 4andprevent bodily shifting of the element with respect to the retainingmember; horizontally extending supports carried by the retaining memberand disposedlaterally outside of said means on said element; and lugs onsaid element extending over and adapted to pivot upon said supports tothereby adapt said element to swingv to normal position when freed fromload.

4;. In an anti-friction bearing of the character described, thecombination with a hollow retaining member having vertically extendingguide recesses on the inner side thereof; of an insert bearing plate onthe inner side of said retaining member; a rolling anti-friction elementhaving concentric upper and lower bearing surfaces, the up-A per bearingsurface being adapted to roll fior lll)

upon the under side of `said bearing plate, said element having alsolaterally extended guide lugs` disposed Within and'cooperating with theside Walls of `said recesses; and.

means, extended laterally beyond and from said lugs, providing a pivotalsupport for said element during the returnmovements thereof.' y

5. In an anti-friction bearing of the character described, thecombination lwith a hollow retaining member having vertically extendingguide recesses on the inner side thereof; of an insert bearing plate onthe inner side of said retainingfmember; a rolling anti-friction elementhaving concentric upper and lower bearing surfaces, the upper earingsurface being adapted to roll upon the under side of said bearing plate,said element having also #laterally v'extended guide lugs disposedWithin and cooperatingl with 20 the side Walls of said recesses; andmeans providing a pivotal support for said element during the returnmovements thereof, said means including fulcrumfforming lugs v extendedlaterally from said` guide lugs and .25 horizontally extending supportscarried -b the retaining member and disposed beneat saidliulcrum-forming lugs.

In Witness that I claim the foregoing I have hereunto subscribed my namethis 25th 30 day of Feb., 1921.

'Witnessesz o A CARRIE GAILING, UNA C. PEKIN.

